Evaporator.



G. H. BENJAMIN.

EVAPORATOR.

APPucATloN FILED mAR.ao. 19u.

Patented Feb. 5, 1918.

lh i

GEORGE BILLARD IBENJ'MIN, OlE NEW YORK, N, Y;

JEVPORATOR.

Specification of Letters Patent.

, Patented Feb.. 5,191.

' application mea March' 3o, 191?. serial No. www.

T0 all 'whom z't 'may concern.'

lBe it known that I, Gnonon ll-lnannn BEN- JAMIN, a citizen of theUnited States, residing at New York, in the county and State of NewYork, have invented certain new new and useful llmprovements inEvaporators, of which the following is a specification.

My invention relates to the construction of evaporators as designed forthe purposel of obtaining substantially fresh water from salt water, 1nthe most economical manner.

rll`he accompanying drawings will serve to illustrate my invention, inwhich Figure 1 is a Vertical section through an evaporator. Fig. 2 is across section and plan View on the line lll-ll of Fig. 1. Fig. 3 is afront elevation with a portion of the door and casing broken away toshow the coils of the evaporator. Fig. 4 is a side view of the door,manifolds, coils and supporting mechanism for the door, etc., whendetached from the casing.

ln the drawings, 5 indicates the shell of a condenser. The front of theshell has formed in it an opening 6, adapted to be closed by a door 7which may be secured to the shell by means of bolts 8. Secured to theinner side of the door 7 are manifolds 9-10, to which are secured coils11. Interposed between the manifolds are braces i12- 13. Secured to theIlower part of the door is a plate or casting 14. Projecting from thefront of the plate or casting in a downward direction, are arms 15, inwhich is mounted an axle 16, carrying rollers 17. Projecting from thefront of the plate or casting 14 and in a backward and downward idirection so as to partially inclose the lower part of the casing, arearms 18 which carry short axles 19 on each of which axles is a roller20.

lt will be seen that the construction is such that the arms 15 and 1 8,with rollers 17 and 2() acting in conjunction with the door 7, serve tosupport the manifolds 9--10 and coils 11 when the door and manifolds areremoved from the casing, the whole weight of the door, manifolds andcoils being supported by the rollers 17 and 20, which are external tothe casing; the advantage of this construction over prior constructionsbeing that the means used to support the manifolds and coils areentirely exterior to the casing, and therefore not subject to theheating and eorroding effects of the temperaturc and clilorin vapors`set free within the casing, particularly in the-case where theevaporator is used for separating fresh Water .from salt water. Theconnection of the coils 11. to the manifolds .)-'l0 may be any which isknown as useful with correspending apparatus.

Connected to the manifolds, external to the. caslng, are pipes 21-22, bymeans of which steam may be fed to the manifold 9 and coils 11, andcondensed water carried from the manifold 10 out of the apparatus. Toremove the coils from the apparatus, nuts 21ZL and 22a are removed frombolts secured to the door 7, so that the pipes 2122 may be removed fromthe manifolds; then the nuts on bolts 8 are released, when the door,manifolds and coils mounted on the rollers can be moved outward forcleaning, and conversely, inward, and the nuts replaced on the bolts tosecure the parts in position.

Connected at one side of the bottom of the shell, is a feed pipe 23 anda blow-off pipe 24. 25 indicates a pipe through which any vapor set freewithin the evaporator, may be carried out of the evaporator.

Having thus described my invention, l claim:

1. An improvement in an evaporating apparatus, comprising a containingshell having an opening therein, a door detachably secured over saidopening, a heating element mounted on the door, and means for supportingthe door and heating element located wholly without and independent ofthe casing.

2. An improvement in an evaporating apparatus, comprising a casinghaving an opening therein, a door detachably secured over said opening,a heating element mounted on the door, the heating element formed of aplurality of manifolds mounted on the door, a plurality of heating coilseX- tending between the manifolds, and .supporting means for thedoor-and heating element located wholly without and not connected to thecasing.

3. An improvement 1n an evaporating apparatus, comprising a casinghaving an opening therein, a door detachably. secured over said opening,a heating element mounted on the door, supporting means. -for the doorand heating element located wholly without and not connected to thecasing,

said supporting means consisting of a mem- -ber connected to the door, apair-of arms projecting forwardly and downwardly from the member, aroller carried by each of the arms, a pair of arms projecting backwardlyand downwardly from the member, and partiallj7 enveloping the casing,and a roller carried by each of the arms.

4. An improvement in an evaporating apparatus, comprising a casinghaving an opening therein, a door detachably secured over said opening,a heating structure mounted on the rear side of the door and projectingwhen the door is in position within the casing, and supporting rollersfor said door and heating structure located Wholl without the casing.

5. Xn improvement in an evaporating apparatus, comprising an uprightcasing having an opening in the front thereof, a door detachably'securedover said opening, aheating element mounted on the door and projectingwithin the casing, and movable supporting means for the door and heatingelement secured to the lower part of the door and located wholly withoutand not connected to the casing, whereby the door and the heatingelement may be moved into and out of the casing as desired.

6. An improvement in an evaporating apparatus, comprising a casinghaving an opening thereln, a door detachably secured over said opening,a heating element mounted on the door and means for su porting andpermitting movement of t e door and heatingelement. comprising two pairsof rollers, one pair having their axes located in a vertical plane' infront of the door and the other pair in a vertical plane to the rear ofthe door, and said rollers located wholly without the casing.

7. In an evaporating apparatus, the combination of a casing having anopening therein, a heating element structurally independent of thecasing and comprising a door, means for securing the door to the casing,a plurality of manifolds, a plurality of heating coils extending betweenthe mani folds, and means for carrying the Weight of the door andheating element, both when the heating element is in the casing and outof the casing, comprising two sets of rollers mounted on arms, one setlocated in front of ihe door and the other set to the rear of the oor.

8. An improvement in an evaporating apparatus, comprising a casinghaving an opening therein, a door detachably secured over said opening,a heating element mounted on the door and projecting within the casing,a feed pipe, a blow-ofi' pipe and a vapor pipe connecting with theinterior of the casing, and supporting means for the door and heatingelement located wholly without and not connected to the casing.

In testimony whereof, I affix my signature, in the presence of twowitnesses.

` GEORGE HILLARD BENJAMIN. Witnesses:

' HELEN E. KoELsoH,

HELEN E. MrsoHNER.

